/*
 * @(#)$Id: AttributesDecl.java,v 1.3 2001/11/01 00:11:45 kkawa Exp $
 *
 * Copyright 2001 Kohsuke KAWAGUCHI
 * 
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.iso_relax.dispatcher;

import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;

/**
 * represents a constraint for XML attributes. This interface also provides
 * feature/property mechanism to encourage communications between two different
 * implementations.
 * 
 * @author <a href="mailto:k-kawa@bigfoot.com">Kohsuke KAWAGUCHI</a>
 */
public interface AttributesDecl
{
  /**
   * gets name of this rule. every AttributesDecl has a unique name within the
   * schema.
   */
  String getName ();

  /**
   * looks up the value of a feature this method works like getFeature method of
   * SAX. featureName is a fully-qualified URI. Implementators are encouraged to
   * invent their own features, by using their own URIs.
   */
  boolean getFeature (String featureName) throws SAXNotRecognizedException, SAXNotSupportedException;

  /**
   * looks up the value of a property this method works like getProperty method
   * of SAX. propertyName is a fully-qualified URI. Implementators are
   * encouraged to invent their own properties, by using their own URIs.
   */
  Object getProperty (String propertyName) throws SAXNotRecognizedException, SAXNotSupportedException;
}
